Featuring O3 Ozone, the latest in Ozonics' scent elimination technology, the HR-150 safely utilizes small concentrations of ozone to eliminate human related odors downwind. Primarily designed for achieving nearly 100% odor removal in a ground blind, the HR-150 can also be used in a tree stand with 70% effectiveness. Features an on-demand LED battery level indicator. Lightweight, 1.7 lb. compact design. Advanced silent-touch switches and ultra-quiet fan are undetectable by prey. Included HR mount device easily mounts to tree or blind. Rechargeable battery provides up to 5 hours of run time. Package includes Ozonics HR-150 Electronic Scent Eliminator with rechargeable battery and mount. Dimensions: 3.5"H x 7.7"W x 5.8"D. Weight: 1.75 lbs.